grub2/0301-Only-attempt-to-scan-different-BLS-directories-on-EF.patch

From 7de678cfab12bfe4ceddc5a32e0bf18f884bfa17 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javierm@redhat.com>
Date: Tue, 3 Apr 2018 15:42:47 +0200
Subject: [PATCH] Only attempt to scan different BLS directories on EFI
 machines

Current BLS support attempted to scan for BLS directories, but this only
makes sense on EFI, where BLS fragments are in /loader/$vendor/entries.

For BIOS, only either the default /loader/entries path should be scanned
or the BLS directory defined in the blsdir GRUB 2 environment variable.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
---
 grub-core/commands/blscfg.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
index e5617c3bc6c..c0973ff83ea 100644
--- a/grub-core/commands/blscfg.c
+++ b/grub-core/commands/blscfg.c
@@ -676,8 +676,8 @@ static int find_entry (const char *filename,
   const char *devid = grub_env_get ("boot");
 
   grub_dprintf("blscfg", "%s got here\n", __func__);
-  if (!grub_strcmp (filename, ".") ||
-      !grub_strcmp (filename, ".."))
+  if (filename && (!grub_strcmp (filename, ".") ||
+		   !grub_strcmp (filename, "..")))
     return 0;
 
   if (info->platform == PLATFORM_EFI && !grub_strcasecmp (filename, "boot"))
@@ -872,11 +872,10 @@ grub_cmd_blscfg (grub_extcmd_context_t ctxt UNUSED,
   info.platform = PLATFORM_EMU;
   grub_dprintf ("blscfg", "scanning %s%s\n", GRUB_BOOT_DEVICE,
 		GRUB_BLS_CONFIG_PATH);
-  r = fs->dir (dev, "/boot/loader/",
-	       find_entry, &info);
+  find_entry(NULL, NULL, &info);
 #else
   grub_dprintf ("blscfg", "scanning %s\n", GRUB_BLS_CONFIG_PATH);
-  r = fs->dir (dev, "/", find_entry, &info);
+  find_entry(NULL, NULL, &info);
 #endif
 
 finish: